Cetyldimethylbenzyl ammonium 2-(5-chlorobenzothiazyl)-sulfide



Patented June 19, 1951 CETYLDIMETHYLBENZYL AMMONIUM 2- CHLOROBENZO-THIAZYL) SULFIDE Lester A. Brooks, East Norwalk, Conn assignor to R. T. Vanderbilt Company,'lnc., New York, N. Y., a corporation of New York No Drawing. Original application February 5,

1947, Serial No. 726,742.

Divided and this application February 7, 1947, Serial No. 727,273

1 'Claim. 1

I have invented a new chemical compound not hitherto known which exhibits unusual properties in several applications. The new compound which I have invented is cetyldimethylbenzyl ammonium 2-(5-chlorobenzothiazyl) -sulfide, a compound of the formula S cetyl For example, cetyldimethylbenzyl ammonium 2-(5-chlorobenzothiazyl) sulfide may be prepared as follows: a solution of 4 grams (0.01 mole) of cetyldimethyl benzyl ammonium chloride dissolved in 25 cubic centimeters of water is added to a 25 cubic centimeter solution of the sodium salt of 5-chlor0, Z-mercapto, benzothiazole prepared from 2 grams (.01 mole) of 5-chloro, 2- mercapto, benzothiazole. A quantitative yield of a white precipitate is formed which is filtered oil and dried. Again for example, a quaternary ammonium halide derived from hydrogenated tallow comprising about 25 of C1 fl zM z U ah and about 75% of Cl z 5(CH2)mCH 1 T(CH site the name of the compound, I have indicated the minimum concentration effective in parts per million of an aqueous medium under M. L. D. (minimum lethal dose) the concentration required to prevent germination and under R (retarding dose) the minimum concentration required to limit germination to 5% as maximum of cultures of Aspergz'llus niger incubated at C. for '72 hours in a nutrient solution comprising 40 grams of dextrose, 2 grams of asparagine, 0.5 gram of dihydrogen potassium orthophosphate, 0.25 gram of magnesium sulfate with 7 molecules of water crystallization and 0.0003 gram of thiamine chloride per five liters of water.

Aspcrgillus niger The compound of my invention is insoluble in water and is a solid which is markedly waxy. Moreover, the compound of my invention is soluble in acetone, methyl alcohol, ethyl alcohol, isopropyl alcohol, methyl ethyl ketone, methyl acetate, ethyl acetate, monoethyl ether of ethylene glycol and monomethyl ether of ethylene glycol and is insoluble in straight run gasoline (TO-72 A. P. I.) and in benzene and is slightly soluble in diethyl ether. The compound of my invention is insoluble in carbon tetrachloride.

The new compound of my invention is of special value, for example, in application to textiles to render the textiles proof against mildew or other fungus attack. This compound is conveniently applied to textiles by dissolving it in acetone, diluting this solution with from 1' to 3 volumes of water per volume of acetone, dipping the textile in this acetone-Water solution or suspension of the compound or spraying it upon the textile, and drying the textile. Efiective amounts of the new compound in the range of from about 0.01% to about 0.5% by weight on the textile can be deposited upon the textile in this manner. Textiles exhibit a high retention for this new compound, perhaps because of its waxy nature. Due to its insolubility in water it resists removal by leaching or washing with water. Being insoluble in the ordinary dry cleaning solvents, it resists removal by dry cleaning operations. Because of the low concentration in which it is an effective fungicide, this material can be applied to light colored or white goods even though color of the treated textile is important.

This application is a division for my application Serial No. 726,742 for the same subject matter executed February 3, 1947, now abandoned.

I claim:

Cetyldimethylbenzyl ammonium 2-(5-ch1orobenzothiazyl) sulfide.

LESTER A. BROOKS.

REFERENCES CITED The following references are of record in the file of this patent:

Number Number 4 UNITED STATES PATENTS Name Date Baird Sept. 17, 1935 Sebrell Dec. 17, 1935 Baird Jan. 4, 1938 Cramer July 12, 1938 Cramer July 12, 1938 Skapta-son Apr. 22, 1947 Minich Mar. 2, 1948 FOREIGN PATENTS Country Date Great Britain 1936 

